Trisomy-21 Results in Which Condition

question 157

Multiple Choice

Trisomy-21 results in which condition?

• A)cretinism
• B)Down syndrome
• C)Fragile-X syndrome
• D)phenylketonuria (PKU)

---

Definitions:

Secondary Oocyte

An immature egg cell that forms from a primary oocyte after the first meiotic division but before the second division is completed, arrested in metaphase II until fertilization.

Nitric Oxide

A gas molecule that plays an important role in many physiological and pathological processes within the body, including vasodilation and neurotransmission.

Erectile Tissue

A type of tissue found in certain parts of the body like the penis and clitoris, which can swell with blood to produce erection.

Dilation

The process of widening, stretching, or expanding, often referring to blood vessels or pupils.